Display screen or portion thereof with zygosity icons



FIG. 1 is a front view of a display screen or portion thereof with zygosity icons showing our new design; and,

FIG. 2 is a front view of an alternative embodiment of a display screen of portion thereof with zigosity icons showing our new design.

The gray areas form part of the claimed design. The outer broken line rectangle showing the display screen or portion thereof, and all other broken lines showing the graphical user interface are included for the purpose of illustrating portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with zygosity icons, as shown and described. 